Final answer:
When security-lighting provisions are impractical, alternative measures such as night vision technology, motion sensors, and physical barriers can be used to maintain visual-assessment capability during darkness.
Step-by-step explanation:
When security-lighting provisions are impractical, alternative measures are needed to maintain visual-assessment capability during darkness. These measures might include:
- Using night vision technology, such as night vision goggles, to enhance visibility in low-light conditions.
- Implementing motion sensors or infrared cameras that can detect movement or heat signatures in the darkness.
- Employing physical barriers, such as fencing or gates, to deter unauthorized access during nighttime hours.